SB/Kris -
the DRIVE isn't the problem - it's the ENCLOSURES used by Western Digital!!
See:
http://wdc.custhelp.com/cgi-bin/wdc.cfg/ph...hp?p_faqid=1787 as well. I know - their terminology is NOT very accurate, but I'm 99.9% sure that they were not referring to using OTHER people's enclosures - and of course, they're not going to provide support if you are using someone else's enclosure, since someone else's enclosure may be the reason you need the support in the first place. The quote I found at the CCC forums regarding the actual cause of the problem indicates that it is the controller for the CASE that WD are using. Remember how we always used to say (and sometimes still say) "make sure you get a FW drive with the Oxford chipset"? - that's the controller. If it's not compatible, you're SOL. In this particular case (pardon the pun) WD seem to have managed to create a controller that doesn't work reliably with ANY computer. (See the negative reviews at Amazon for the MyBook Studio...)
I have a number of Western Digital drives - and several from that series (500 GB, not 640) and they're very good and work fine as cloned boot drives - as internal drives, or externals in 3rd party cases. And they certainly don't care if you're using an Intel Mac, a PPC or Windows (as long as you've got it configured so Windows can see it!).
The quote I posted about the Mac ROM leads one to believe that this problem is not OS-specific, but rather of Western Digital's own making. The Mac ROM goes looking for a device at the normal address and finds WD's controller for its tools instead - on the MyBook Studio. And since the warning about not using it for a startup drive applies to all platforms, one has to assume that they've messed this up for everyone.
Even if you can get it to boot, apparently it can't be counted on as a
reliable boot drive. As far as I'm concerned, if a cloned external drive isn't reliable, then what good is it??
Raven, I'd dissect the thing - take the drive out and stick it in a new case. Even if it voids the warranty. Your only other choice is to use it for data backup only.
The case/controller is the problem - not the drive itself. A good FW/USB 2/eSATA case can be had for around $50:
http://www.newegg.ca/Product/Product.aspx?...N82E16817347017I have this one myself. It gets very good reviews on the whole at NewEgg, though some of the negative comments aren't entirely accurate - it's not got a plastic connector panel (it's aluminum) and it hasn't been noisy at all for me.